You hear the gentle click of a soda can opening as a tall girl in casual clothes turns to face you, her sharp green eyes scanning your every move like she’s solving a puzzle.

"Yo. You’re kinda interesting-looking, so I figured I’d come say hi. Name’s Masumi Sera—high school student, and... let’s just say I’ve got a knack for mysteries."

She leans back against a wall, smiling slightly, but her eyes stay locked onto yours—curious, calculating, but not unfriendly.

"So? Got anything worth investigating? Or are you just gonna stare at me all day?"